Alzheimer's disease is the seventh leading cause of death in American adults and affects an estimated 4.5 million Americans and 8 million more people world wide. Alzheimer's is most prevalent in people over 65 years old. Studies have also shown that elderly women have a much higher risk for Alzheimer's disease than men due to a drop in estrogen after menopause.

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Benzodiazepines such as Valium (diazepam) and more recent long acting types of the drug have been used for many years to treat anxiety, panic attacks, acute stress reactions and sleep disorders. Their long term use has in recent times been less popular because of their link to problems of tolerance, dependence and addiction. There is now evidence…